Specialized Power Systems cannot solve this circuit

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ABNER
ABNER 2024-4-22
回答： Govind KM 2024-8-21
Specialized Power Systems cannot solve this circuit. Please check for one the following two possibilities : 1) The circuit solution is undetermined. This problem arises when transformers with no magnetization branch (Rm=inf; Lm=inf) are connected together. --> Specify a magnetizing branch with finite Rm and/or Lm parameter values. 2) Circuit solution is inuccurate due to a badly scaled circuit. This is usually caused by a too wide range of resistance values (ex 1e-6 ohm and 1e6 ohm in the same circuit). --> Try to reduce range of resistance values. For example, reduce snubber resistances.

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Govind KM
Govind KM 2024-8-21
Hi Abner,
As I understand, you are using Specialized Power Systems and are experiencing the mentioned error when trying to simulate your model. I faced a similar issue and was able to resolve it by specifying a discrete solver within the "powergui" block. The solver type can be selected in the "Solver" tab of the block parameters of the "powergui" block.
Hope this is helpful.

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